A map scale is 1 : 50,000. Two towns are 6 cm apart on the map. What is the actual distance in kilometres?
Correct answer: B. 3 km
6 cm × 50,000 = 300,000 cm. Since 100,000 cm = 1 km, 300,000 cm = 3 km. Converting units carefully is the key step in scale problems.
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